C11112331312111112111133133313331333132323213331333133313332113311211   >>    C1111233131211111211113313331333133313232321333133313331333211331121   <<    C11112331312111112111133133313331333132323213331333133313332113311213   >>      C11112331312111112111133133313331333132323213331333133313332113311212   >>